EP1969862B1 - Intelligente netzwerkdienste - Google Patents

Intelligente netzwerkdienste Download PDF

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Publication number
EP1969862B1
EP1969862B1 EP05823668A EP05823668A EP1969862B1 EP 1969862 B1 EP1969862 B1 EP 1969862B1 EP 05823668 A EP05823668 A EP 05823668A EP 05823668 A EP05823668 A EP 05823668A EP 1969862 B1 EP1969862 B1 EP 1969862B1
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Prior art keywords
call
control node
service
roaming
leg
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English (en)
French (fr)
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EP1969862A1 (de
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Rogier Noldus
Arvind Sharma
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/10—Mobility data transfer between location register and external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H04Q3/0041—Provisions for intelligent networking involving techniques for avoiding interaction of call service features
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H04Q3/0045—Provisions for intelligent networking involving hybrid, i.e. a mixture of public and private, or multi-vendor systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/06—Interfaces between hierarchically different network devices between gateways and public network devices

Definitions

  • the invention relates, to a method and control node for handling Intelligent Network services associated with a call to a subscriber of a mobile telecommunications network.
  • Intelligent Network services are well known in the state of the art telecommunications networks such as GSM (Global System for Mobile communications). Another example can be found in WO 2004/103012 .
  • the central component of the Core Network subsystem of a GSM network is the Mobile services Switching Center (MSC). It acts like a switching node of the PSTN or ISDN, and additionally provides all the functionality needed to handle a mobile subscriber, such as registration, authentication, location updating, handovers, and call routing to a roaming subscriber. These services are provided in conjunction with several functional entities, which together form the Core Network subsystem.
  • MSC Mobile services Switching Center
  • a Gateway MSC provides the connection to the fixed networks (such as the PSTN or ISDN).
  • Signaling between functional entities in the Core Network subsystem uses Signaling System Number 7 (SS7), used for trunk signaling in ISDN and widely used in current public networks.
  • SS7 Signaling System Number 7
  • the HLR contains all the administrative information of each subscriber registered in the corresponding GSM network, along with the current location of the mobile station.
  • the location of the mobile station is typically in the form of the signaling address of the VLR associated with the mobile station.
  • the VLR contains selected administrative information from the HLR, necessary for call control and provision of the subscribed services, for each mobile station currently located in the geographical area controlled by the VLR and currently served by that VLR.
  • each functional entity can be implemented as an independent unit, currently all manufacturers of switching equipment implement the VLR together with the MSC, so that the geographical area controlled by the MSC corresponds to that controlled by the VLR, thus simplifying the signaling required.
  • the MSC contains no information about particular mobile stations; this information is stored in the location registers.
  • a gateway is a node used to interconnect two networks.
  • the gateway is often implemented in an MSC, in which case the MSC is referred to as the GMSC.
  • the GMSC acts as the "entrance" from exterior portions of the Public Switched Telephone Network onto the provider's network.
  • the phone is free to roam anywhere in the operator's network or on the networks of roaming partners, including in other countries. So the first job of the Gateway MSC is to determine the current location of the mobile phone in order to connect the call. It does this by consulting the HLR, which, as described above, knows which Visited Location Register (VLR) the phone is associated with at the moment, if any.
  • VLR Visited Location Register
  • the HLR When the HLR receives this query message, it determines whether the call should be routed to another number (called a divert), or the call should be routed directly to the mobile station of the called subscriber.
  • a divert another number
  • CFU Call Forwarding Unconditional
  • FTN Forwarded-to-Number
  • the HLR If the mobile station is not currently associated with a VLR (e.g. because the phone has been turned off), then the HLR returns a number known as the Call Forwarding Not Reachable (CFNRc) number to the GMSC, and the call is forwarded there. Many operators may set this value automatically to the phone's voice mail number, so that callers may leave a message.
  • CNRc Call Forwarding Not Reachable
  • the HLR knows that the phone is in the jurisdiction of a particular VLR, then it will request a temporary number, a so called Mobile Station Roaming Number (MSRN) from that VLR. This number is relayed to the GMSC, which uses it to route the call to another MSC, called the Visited MSC (VMSC).
  • MSRN Mobile Station Roaming Number
  • the MSRN When the call is received by the VMSC, the MSRN is used to find the phone's record in the VLR. This record identifies the phone's location area. Paging occurs to all mobile phone masts in that area. When the subscriber's mobile responds, the exact location of the mobile is returned to the VMSC. The VMSC then forwards the call to the appropriate phone mast, and the phone rings. If the subscriber answers, a speech path is created through the VMSC and GMSC back to the network of the person making the call, and a normal telephone call follows.
  • the phone call is not answered. If the subscriber is busy on another call (and call waiting is not being used), then the VMSC routes the call to a pre-determined Call Forwarding Busy (CFB) number. Similarly, if the subscriber does not answer the call after a period of time (typically 30 seconds), then the VMSC routes the call to a pre-determined Call Forwarding No Reply (CFNRy) number.
  • CFB Call Forwarding Busy
  • CFNRy Call Forwarding No Reply
  • An Intelligent Network is a network that is coupled to a telecommunications network that enables operators to deploy operator-specific Value Added Services (VAS).
  • VAS Value Added Services
  • the intelligence that resides in the switch is augmented by intelligence from the Intelligent Network, which is placed in computer nodes that are distributed throughout the network. This provides the network operator with the means to develop, deploy and control services more efficiently. New services can be rapidly introduced into the telecommunications network. Once introduced, services are easily customized to meet individual customers' needs.
  • IN services are typically provided by a Service Control Point (SCP).
  • SCP Service Control Point
  • An SCP is a control computer that communicates with other nodes and entities in the telecommunications network.
  • the SCP comprises the service logic of one or more IN services and optionally IN service subscription data that allows the SCP to execute an IN service in accordance with the specific settings of a subscriber, i.e. tailor the service execution to the subscriber.
  • the telecommunications network may query the SCP and ask for instructions for handling this call. For instance, an SCP is consulted to provide the translation of an 800 number to an actual phone number and to bill the owner of the 800 number for the call.
  • SCPs may be physically separated from other components of the Intelligent Network or may be combined with these other components into a single node.
  • the IN service subscription information is stored in the HLR.
  • Two types of information reside in the HLR: (1) static subscriber information and (2) dynamic subscriber information. The latter is e.g. needed to allow incoming calls to be routed to the mobile subscriber.
  • the HLR stores, amongst others:
  • IN services may be divided into two categories.
  • One category comprises services to be invoked for subscribers who initiate a call (Mobile Originated Call - MOC). These services are called Mobile Originating (MO) services.
  • MO Mobile Originating
  • An example of an MO service is outgoing call screening.
  • Each IN service subscriber is marked in his HLR with an Originating CAMEL Subscription Information (O-CSI) element, which is used to identify a specific service at the SCP.
  • O-CSI Originating CAMEL Subscription Information
  • the O-CSI initiates the triggering of the MOC service as soon as the subscriber initiates a MO call.
  • CAMEL is deployed, which stands for "Customised Applications for Mobile network Enhanced Logic”.
  • CAMEL was developed as a standard for extending landline IN telephony services such as call waiting and call forwarding to GSM mobile phones.
  • the other category comprises services to be invoked for subscribers who receive a call (Mobile Terminated Call - MTC). These services are called mobile terminating (MT) services. Examples of mobile terminating services are call diversion services and Personal Greeting Service (PGS).
  • PGS is a service that is associated with a roaming leg. PGS entails that when a signalling connection is established between a GMSC and VMSC (a so called "roaming leg"), then a personalised greeting is played to the calling party. The personalised greeting replaces the conventional alerting tone ("ring tone"). As such, the personalised greeting is primarily related to the establishment of the roaming leg; the ring tone becomes active only when the roaming leg is established and the called party is alerted.
  • T-CSI Terminating CAMEL Subscription Information
  • a control node may query a HLR during MTC handling to obtain instructions from the HLR.
  • the control node may be a GMSC.
  • the HLR may send IN trigger information for the terminating call.
  • the IN trigger information exchanged between the HLR and the control node has been standardized.
  • T-CSI is the GSM standardized IN trigger information for terminating calls, as specified by 3GPP (3rd Generation Partnership Project) in 3GPP TS 29.002.
  • IN trigger information comprises among others the address of the SCP where the IN service resides and the service key, which identifies a particular IN service within the SCP.
  • the control node uses the IN trigger information to invoke the IN service in the SCP as specified for the subscriber in the IN trigger information.
  • the SCP sends an instruction to the control node to e.g. continue call set up or to terminate the call depending on the outcome of the service execution.
  • Patent application WO00/25528 discloses a Service Interaction Manager, which is included in an SCP.
  • the task of the Service Interaction Manager is to determine which of the available services in the SCP should be executed for a subscriber and to invoke those services in a particular sequence.
  • IN Services need not be aware of the existence of one or more other IN services in that control node for that call. In other words, a first service does not need to know whether a second service will be invoked and vice versa. Since the services do not require knowledge about the possible invocation of other IN services for this call, the services may run on different platforms and may be supplied by different vendors.
  • the invention may provide for a Home Location Register to send a first service trigger element of said multiple service trigger elements, in response to a first request for routing information and a second service trigger element of said multiple service trigger elements in response to a second request for routing information.
  • the first request for routing information may comprise:
  • the response to the first request for routing information may comprise:
  • the second request for routing information may comprise:
  • the response to the second request for routing information may comprise:
  • the MAP message may be sent from the HLR to a GMSC in multiple Signalling Connection Control Part messages, due to MAP segmentation.
  • a first service for example a pre-paid charging service, is executed in a first service control point and a second service, for example PGS, is executed in a second SCP.
  • pre-paid service and PGS may be offered to the same subscriber; the pre-paid service and PGS may run on different platforms and are not related to one another.
  • the calling subscriber may hear any call progress message even when early call forwarding or late call forwarding with optimal routing takes place.
  • PGS may be offered to Virtual Private Network (VPN) subscribers.
  • VPN Virtual Private Network
  • a control node for handling Intelligent Network services associated with a call to a subscriber of a mobile telecommunications network, the network comprising said control node, an HLR and one or more SCPs; the control node configured to send to said HLR one or more requests for routing information associated with said call; the control node further configured to receive from said HLR multiple service trigger elements associated with said services, and for invoking said services in said one ore more SCPs by using said trigger elements; the control node further configured to receive from said one or more SCPs information related to said services associated with said trigger elements.
  • control node comprises a GMSC.
  • the control node may however also comprise a device such as an MSC or an SCP.
  • a third aspect of the invention proposes a computer program, comprising program instructions for causing a computer to perform the method according to the invention.
  • the computer program may be stored on a carrier and may comprise computer executable instructions for causing a computer to perform the method according to invention.
  • the carrier of the computer program may be a record medium, computer memory, read-only memory or an electrical carrier signal.
  • the present invention proposes that multiple IN services may be provided for a particular call type to a subscriber.
  • an HLR may have registered multiple indications of particular IN call type subscriptions (hereinafter referred to as IN trigger elements).
  • MT call handling in the GMSC may be divided in two logical parts:
  • the terminating call handling includes the retrieving of T-CSI from the HLR and the invocation of the first CAMEL service.
  • the first CAMEL service may enforce call restriction or may apply call forwarding. Typically, this first CAMEL service is also used for terminating charging, for the case that the called subscriber is roaming.
  • the HLR may also return other IN trigger elements in combination with T-CSI.
  • the roaming leg handling includes the retrieving of the MSRN from HLR and the routing of the call from the GMSC to the terminating MSC, where the called party is registered at that moment. It is noticed that "roaming leg" is equally applicable for the case that the subscriber is in the Visited Public Land Mobile Network (VPLMN) and for the case that the subscriber is in the Home Public Land Mobile Network (HPLMN). I.e. "roaming" shall in this case not be associated with "being in another network or in another country”.
  • VPN Visited Public Land Mobile Network
  • HPLMN Home Public Land Mobile Network
  • the present invention proposes that the invocation of two IN services for an MT call is done along the line of above-described distinction.
  • two types of IN services for MT call may be defined:
  • HLR If the HLR returns a Forwarded-to-Number (FTN) instead of an MSRN, then there will not be a roaming leg and consequently, no roaming leg-associated IN service will be invoked.
  • FTN Forwarded-to-Number
  • FIG. 1 is a block diagram of a prior art configuration of devices in a mobile telecommunications network.
  • the shown entities belong, at least conceptually, to an intelligent network that is distinct from the mobile communications network.
  • the intelligent network includes HLR 111, SCP1 121, SCP2 122 and GMSC110.
  • GMSC 110 interfaces to SCP1 and SCP2 as well as to HLR 111 for performing well known IN triggering functions.
  • SCP1 and SCP2 contain intelligent network services that may be invoked sequentially during the handling of a mobile terminating call.
  • Figure 2 is a signalling diagram of the method and devices according to the present invention with a general overview of relations between various elements. The method comprises next steps:
  • Figure 3 is a block diagram of devices and their interrelations according to the present invention.
  • HLR 111 may communicate with GMSC 110 and to VMSC 112.
  • GMSC may communicate with SCP1 121 and other subsequently invoked SCPs (SCPn) 122.
  • SCPn SCPs
  • GMSC 110 may communicate with VMSC 112.
  • FIG. 4 is a signalling diagram of an embodiment of the method of the present invention comprising a communication sequence between the devices as shown in figure 3 , comprising GMSC 110, HLR 111, multiple SCPs 121, 122 and a VMSC 112.
  • GMSC 110 GMSC 110
  • HLR 111 HLR 111
  • SCPs 121, 122 VMSC 112.
  • a subscriber is subscribed to a CAMEL service and additionally to at least one service, which may be an IN, service.
  • at least one service which may be an IN, service.
  • steps 6-11 may be repeated for a third SCP and so on. The following steps occur:
  • Steps 401 - 408 represent normal GSM call handling.
  • Step 409 represents an enhancement to the existing MT call handling.
  • the HLR 111 will normally return only the MSRN to the GMSC 110.
  • Step 409 adds the RICK to the MAP SRI-Res.
  • Step 410 and step 411 do not exist in existing Roaming Leg handling. These steps represent the invocation of the second IN service for the MT call handling in the GMSC 110.
  • the two IN services may remain active.
  • the first IN service triggered as a result of the sending of T-CSI to the GMSC 110, may remain active for the entire call and has the full capability available as allowed by the IN protocol used for that service.
  • the second IN service triggered as a result of the sending of RICK to the GMSC 110, may also remain active for the entire call.
  • This IN service shall, however, use the IN capability with certain restrictions. As an example, this service shall not apply call forwarding, as that would affect a pre-paid service for the call.
  • the present invention may be applied on various types of GSM call forwarding. This may be shown most adequately by taking a service like Personal Greeting Service (PGS) as an example.
  • PGS Personal Greeting Service
  • the destination of the call changes.
  • Some operators require that the PGS service be terminated when call forwarding to a voice mailbox takes place.
  • the HLR 111 does not return an MSRN in the second SRI Result and, according to the present invention, does not return the RICK.
  • the GMSC 110 now forwards the call to the forwarded-to destination, which may e.g. be a voice mailbox or call completion service. Since the HLR 111 has not returned RICK, there will not be a PGS invocation. The calling subscriber may now hear any announcement that is played by the voice mailbox, even when the voice mailbox defers the generation of the ISUP Answer Message (ISUP ANM) for a defined duration.
  • ISUP ANM ISUP Answer Message
  • Optimal Routing of Late Call Forwarding may be applied to return the call handling to the GMSC 110.
  • the GMSC 110 terminates the roaming leg and hence, the roaming-leg IN service will be terminated as well.
  • the call is already routed to the destination MSC of the called subscriber.
  • the VMSC 112 may send MAP Resume Call Handling (RCH) to the GMSC 110; the sending of MAP RCH is part of ORLCF.
  • RCH MAP Resume Call Handling
  • the GMSC 110 When the GMSC 110 receives MAP RCH and approves the request for ORLCF, it releases the roaming leg and creates a forwarded leg. The calling party may hear any announcement generated by the forwarded-to destination.
  • ACM ISUP Address Complete Message
  • the present invention resolves that problem, since PGS will be terminated in the case of late call forwarding in combination with ORLCF.
  • the Roaming Leg service may monitor for ISUP messages such as Call Progress (CPG) and ACM. These ISUP messages may indicate that forwarding is taking place.
  • CPG Call Progress
  • ACM ACM Call Progress
  • the service node will propagate the call to the destination MSC.
  • the routing of the roaming leg through a service node may be accomplished in accordance with the present invention.
  • the IN service that is invoked with RICK may provide a prefix for the MSRN, resulting in that the call is routed through the service node.
  • the RICK that is included in the SRI-Res may have the form of a number prefix; a switching node such as a GMSC places the RICK in front of the MSRN, prior to forwarding the call to a next switching node.
  • the B-number analysis in this transition node may be configured such that the RICK results in the selection of a route to the service node.
  • the concept of a subscribed or generic IN service for a roaming leg may be used for the following type of services:
  • the HLR 111 When the HLR 111 sends SRI-Res to GMSC 110 including MSRN, it may include RICK. As an implementation option, the HLR 111 may apply criteria for the inclusion of RICK in SRI-Res, similar to the case whereby the HLR 111 applies criteria for the inclusion of T-CSI in the first SRI-Res. These criteria may e.g. be:
  • the HLR 111 may suppress T-CSI in SRI. As a result, there will not be a MT call service triggered. If the invocation of the Roaming leg service is still required in this case, then the HLR 111 may include RICK in the first SRI-Res. The further handling of RICK in the GMSC 110 is as described earlier.
  • FIG. 5 is a signalling diagram of an embodiment of the method of the present invention, wherein the invocation of multiple services is performed by a GMSC 110 interrogating an HLR 111 for multiple (IN) services before the GMSC 110 sets up the roaming leg.
  • the HLR 111 sends all the information of the IN services at the first interrogation.
  • Steps 501-502 are performed according to the current state of the art. In this example 3 SCPs are involved, although the invention is applicable to multiple SCPs.
  • FIG. 6 is a signalling diagram of an embodiment of the method of the present invention, whereby multiple IN services are invoked for an MO call. The following steps occur in this embodiment.
  • step 605 and 606 are repeated with SCP 2 122 (steps 607, 608) and SCP3 123 (609, 610) and further, until all indicated IN services are invoked.
  • Call processing in MSC 623 continues with step 611 as normal:

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Claims (15)

  1. Verfahren zur Handhaben von intelligenten Netzwerkdiensten, die mit einem Ruf an einen Teilnehmer eines Mobilfunknetzwerkes assoziiert sind, durch einen Steuerknoten (110), wobei das Netzwerk den Steuerknoten (110), ein Heimatregister (111) und einen oder mehrere Dienststeuerungspunkte (121, 122, 123) umfasst, wobei das Verfahren die Schritte umfasst, dass:
    - der Steuerknoten (110) eine oder mehrere Anforderungen für Leitweginformationen, die mit dem Ruf assoziiert sind, an das Heimatregister (111) sendet, wobei eine Anzeige zur Unterstützung eines Roamingabschnitt-IN-Kategorieschlüssels in der einen oder den mehreren Anforderungen gesetzt ist,
    - der Steuerknoten (110 einen Roamingabschnitt-IN-Kategorieschlüssel vom Heimatregister (111) empfängt,
    - der Steuerknoten (110) den Roamingabschnitt-IN-Kategorieschlüssel zur weiteren Bearbeitung des Roamingabschnitts des Rufes verwendet.
  2. Verfahren zur Handhaben von intelligenten Netzwerkdiensten, die mit einem Ruf an einen Teilnehmer eines Mobilfunknetzwerkes assoziiert sind, durch ein Heimatregister (111), wobei das Netzwerk einen Steuerknoten (110), das Heimatregister (111) und einen oder mehrere Dienststeuerungspunkte (121, 122, 123) umfasst, wobei das Verfahren die Schritte umfasst, dass:
    - das Heimatregister (111) eine oder mehrere Anforderungen für Leitweginformationen, die mit dem Ruf assoziiert sind, vom Steuerknoten (110) empfängt,
    - das Heimatregister (111) prüft, ob ein T-CSI-Unterdrücken-Parameter gesetzt ist, und falls affirmativ:
    - das Heimatregister (111) den Roamingabschnitt-IN-Kategorieschlüssel zusammen mit einer Mobilstations-Roamingnummer in eine Mobilanwendungsteil - Leitweginformationen-Senden (MAP-SRI)-Antwort an den Steuerknoten (110) aufnimmt.
  3. Roamingabschnitt-IN-Kategorieschlüssel, umfassend ein oder mehrere Dienstauslöseelemente, die einen Präfix oder einen Suffix für eine Mobilstations-Roamingnummer bereitstellen.
  4. Roamingabschnitt-IN-Kategorieschlüssel, umfassend ein oder mehrere Dienstauslöseelemente zum Auslösen von IN-Diensten.
  5. Verfahren zur Handhaben von intelligenten Netzwerkdiensten, durch einen Steuerknoten (110) nach Anspruch 1, ferner detaillierend den Schritt des Verwendens des Roamingabschnitt-IN-Kategorieschlüssel durch die Schritte, dass:
    - der Steuerknoten (110) ein oder mehrere Auslöseelemente aus dem Roamingabschnitt-IN-Kategorieschlüssel abruft,
    - der Steuerknoten (110) unter Verwendung der Auslöseelemente Dienste in den Dienststeuerungspunkten (121, 122, 123) aufruft (410),
    - der Steuerknoten (110) Information in Bezug auf die Dienste, die mit den Auslöseelemente assoziiert sind, von den Dienststeuerungspunkten (121, 122, 123) empfängt,
    - der Steuerknoten (110) den Roamingabschnitt des Rufes zu einer Besucher-Mobildienstevermittlungseinrichtung (112) leitet.
  6. Verfahren zur Handhaben von intelligenten Netzwerkdiensten in einem Steuerknoten (110) nach Anspruch 5, ferner umfassend die Schritte, dass:
    - der Steuerknoten (110) eine Ruf-Fortsetzen-Bearbeitungsnachricht als Teil einer optimierten Leitweglenkung von später Rufweiterleitung von einer Besucher-Mobildienstevermittlungseinrichtung (112) empfängt,
    - der Steuerknoten 8110) den Roamingabschnitt des Rufes und den aufgerufenen Dienst für den Roamingabschnitt abschließt.
  7. Verfahren zur Handhaben von intelligenten Netzwerkdiensten in einem Steuerknoten (110) nach Anspruch 1, ferner detaillierend den Schritt des Verwendens des Roamingabschnitt-IN-Kategorieschlüssel durch die Schritte, dass:
    - der Steuerknoten (110) einen Präfix und Suffix für eine Mobilstations-Roamingnummer aus dem Roamingabschnitt-IN-Kategorieschlüssel abruft,
    - der Steuerknoten (110) den Präfix oder Suffix der Mobilstations-Roamingnummer hinzufügt,
    - der Steuerknoten (110) den Roamingabschnitt des Rufes zu einem Dienstknoten leitet.
  8. Verfahren zur Handhaben von intelligenten Netzwerkdiensten in einem Steuerknoten (110) nach Anspruch 1, ferner detaillierend den Schritt des Verwendens des Roamingabschnitt-IN-Kategorieschlüssel durch die Schritte, dass:
    - der Steuerknoten (110) einen Präfix und Suffix für eine Mobilstations-Roamingnummer aus dem Roamingabschnitt-IN-Kategorieschlüssel abruft,
    - der Steuerknoten (110) den Präfix oder Suffix der Mobilstations-Roamingnummer hinzufügt,
    - der Steuerknoten (110) den Roamingabschnitt des Rufes zum Zweck einer Trägerauswahl zu einem nächsten Vermittlungsknoten leitet.
  9. Verfahren zur Handhaben von intelligenten Netzwerkdiensten in einem Heimatregister (111) nach Anspruch 2, umfassend den zusätzlichen Schritt, dass das Heimatregister (111) Kriterien für die Aufnahme eines Roamingabschnitt-IN-Kategorieschlüssels in eine MAP-SRI-Antwort prüft.
  10. Verfahren nach Anspruch 9, wobei das Prüfen von Kriterien für die Aufnahme eines Roamingabschnitt-IN-Kategorieschlüssels eines oder mehr von Folgendem umfasst:
    - der Teilnehmer ist im öffentlichen Heimat-Landfunknetzwerk,
    - der eingehende Ruf ist ein Sprachruf,
    - die Anforderung enthält die Anzeige zur Unterstützung von Roamingabschnitt-IN-Kategorieschlüssel.
  11. Steuerknoten (110) zum Handhaben von intelligenten Netzwerkdiensten die mit einem Ruf an einen Teilnehmer eines Mobilfunknetzes assoziiert sind, wobei das Netzwerk den Steuerknoten (110), ein Heimatregister (111) und einen oder mehrere Dienststeuerungspunkte (121, 122, 123) umfasst; der Steuerknoten (110) so konfiguriert ist, dass er Roamingabschnitt-IN-Kategorieschlüssel gemäß den Verfahren nach Anspruch 1, 5, 6, 7 und 8 handhabt.
  12. Steuerknoten (110) nach einem der vorhergehenden Ansprüche, wobei er eine Gateway-Mobilvermittlungseinrichtung ist.
  13. Heimatregister (111) zum Bearbeiten von intelligenten Netzwerkdiensten die mit einem Ruf an einen Teilnehmer eines Mobilfunknetzes assoziiert sind, wobei das Netzwerk einen Steuerknoten (110), das Heimatregister (111) und einen oder mehrere Dienststeuerungspunkte (121, 122, 123) umfasst; das Heimatregister (111) so konfiguriert ist, dass es Roamingabschnitt-IN-Kategorieschlüssel gemäß den Verfahren nach Anspruch 2, 9 und 10 speichert und handhabt.
  14. Computerprogramm auf einem Träger, umfassend auf einem Computer ausführbare Befehle zum Bewirken, dass ein Computer das Verfahren nach Anspruch 1 bis 10 ausführt.
  15. Computerprogramm nach Anspruch 14, wobei der Träger ein Aufzeichnungsmedium, ein Computerspeicher, ein Festwertspeicher oder ein elektrisches Trägersignal ist.
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JP5183486B2 (ja) 2013-04-17
CN101341764A (zh) 2009-01-07
US8126460B2 (en) 2012-02-28
EP1969862A1 (de) 2008-09-17
CN101341764B (zh) 2012-09-05
JP2009519634A (ja) 2009-05-14
US8254940B2 (en) 2012-08-28
WO2007068288A1 (en) 2007-06-21
US20120122450A1 (en) 2012-05-17

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